A foreman wants to use an chart to control the average length of the bolts manufactured.He has recently collected the six samples given below. Determine the LCL and the UCL for the R chart.
A)(0 .0685)
B)(0 .076)
C)(0 .03)
D)(0 .0601)

Question

A foreman wants to use an  chart to control the average length of the bolts manufactured.He has recently collected the six samples given below.  Determine the LCL and the UCL for the R chart.
A)(0 .0685) 
B)(0 .076) 
C)(0 .03) 
D)(0 .0601)

Quizplus · Accepted Answer

0 and .0685.All six sample ranges fall within the control limits.UCL_R= (2.004)(.03)= .0685LCL_R = noneAll six sample ranges fall within the control limits.

A Foreman Wants to Use an Chart to Control